Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 175gr | SAKO Blade bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 56,362 psi | 88% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 54,302 psi | 85% | 2841 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,507 psi | 89% | 2943 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 57,101 psi | 89% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,723 psi | 86% | 2936 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 55,230 psi | 87% | 3035 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 86% | 57,363 psi | 90% | 2913 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,985 psi | 88% | 2989 fps | 98.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3045 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,203 psi | 90% | 3038 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,650 psi | 86% | 2881 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,781 psi | 86% | 2904 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,796 psi | 87% | 2999 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,217 psi | 90% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,332 psi | 87% | 2972 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,565 psi | 89% | 3035 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,345 psi | 84% | 2959 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,180 psi | 72% | 2887 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,476 psi | 84% | 3045 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,735 psi | 81% | 2956 fps | 98% |
| Bofors RP3 | <<locked>> | 84% | 55,419 psi | 87% | 2897 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,565 psi | 89% | 3035 fps | 98.8% |
| Bofors RP7 | <<locked>> | 88% | 54,940 psi | 86% | 2890 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 55,767 psi | 87% | 2917 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 57,000 psi | 89% | 2992 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 88% | 56,681 psi | 89% | 2953 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 98% | 57,609 psi | 90% | 2986 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,333 psi | 88% | 2966 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,985 psi | 88% | 2917 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,334 psi | 90% | 2953 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,121 psi | 71% | 2923 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 90% | 57,595 psi | 90% | 3031 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,535 psi | 57% | 1821 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,667 psi | 90% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,811 psi | 89% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,825 psi | 87% | 2881 fps | 99.5% |
| IMR 4350 | <<locked>> | 92% | 56,173 psi | 88% | 2927 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,565 psi | 89% | 2917 fps | 99.5% |
| IMR 4831 | <<locked>> | 92% | 55,274 psi | 87% | 2930 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,188 psi | 88% | 2930 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,288 psi | 87% | 2913 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3015 fps | 97.5% |
| Lovex S062 | <<locked>> | 84% | 56,840 psi | 89% | 2884 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,724 psi | 89% | 2913 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 54,491 psi | 85% | 2900 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,862 psi | 73% | 2789 fps | 99% |
| Norma 203B | <<locked>> | 84% | 57,725 psi | 90% | 2943 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,101 psi | 89% | 2979 fps | 98.6% |
| Norma MRP | <<locked>> | 98% | 56,289 psi | 88% | 3061 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 57,246 psi | 90% | 2979 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,013 psi | 86% | 2917 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,216 psi | 87% | 3031 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 56,043 psi | 88% | 2979 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,458 psi | 78% | 2900 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,188 psi | 58% | 1864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,666 psi | 87% | 2900 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,768 psi | 89% | 3009 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,882 psi | 86% | 2963 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,363 psi | 90% | 3051 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,324 psi | 71% | 2920 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 55,187 psi | 86% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,506 psi | 87% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,493 psi | 90% | 2956 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 96% | 54,491 psi | 85% | 2956 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 54,940 psi | 86% | 2890 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,724 psi | 89% | 2913 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 56,840 psi | 89% | 2884 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,491 psi | 85% | 2900 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,566 psi | 90% | 2959 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,463 psi | 88% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,173 psi | 88% | 2864 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,027 psi | 85% | 2953 fps | 98.4% |
| Somchem S355 | <<locked>> | 86% | 55,521 psi | 87% | 2890 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,579 psi | 87% | 2894 fps | 96.8% |
| Somchem S365 | <<locked>> | 94% | 56,797 psi | 89% | 2976 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,100 psi | 86% | 2933 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 55,927 psi | 88% | 2805 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,970 psi | 88% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,985 psi | 89% | 2864 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,637 psi | 87% | 2917 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,491 psi | 85% | 2910 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 84% | 57,740 psi | 90% | 2861 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,650 psi | 86% | 2920 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,854 psi | 88% | 2986 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,420 psi | 88% | 3051 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,448 psi | 87% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,232 psi | 90% | 2995 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,168 psi | 77% | 3028 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,347 psi | 87% | 2930 fps | 98.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 52,823 psi | 83% | 2766 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,850 psi | 80% | 2785 fps | 98.4% |
| Accurate 3100 | <<locked>> | 84% | 32,314 psi | 51% | 2480 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 50,111 psi | 79% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,566 psi | 60% | 2641 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 96% | 51,300 psi | 80% | 2966 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 47,471 psi | 74% | 2753 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,888 psi | 67% | 2746 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 46,702 psi | 73% | 2851 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,316 psi | 84% | 2979 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,211 psi | 76% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,459 psi | 81% | 2851 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,507 psi | 59% | 2654 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,815 psi | 67% | 2782 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,453 psi | 67% | 2736 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 90% | 40,161 psi | 63% | 2730 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,325 psi | 43% | 2398 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,228 psi | 52% | 2585 fps | 96% |
| Alliant Reloder-26 | 68.9 gr | 82% | 31,444 psi | 49% | 2572 fps | 96% |
| Bofors RP15 | <<locked>> | 94% | 42,235 psi | 66% | 2772 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 48,559 psi | 76% | 2792 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 40,161 psi | 63% | 2730 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 42,467 psi | 67% | 2661 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 80% | 48,762 psi | 76% | 2802 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 40,640 psi | 64% | 2694 fps | 96.8% |
| Hodgdon H4350 | <<locked>> | 80% | 43,671 psi | 68% | 2720 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 94% | 50,111 psi | 79% | 2861 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,037 psi | 77% | 2841 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,012 psi | 55% | 2543 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,679 psi | 84% | 2897 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,581 psi | 62% | 2789 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 39,653 psi | 62% | 2703 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,224 psi | 43% | 1627 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 54,244 psi | 85% | 2861 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,951 psi | 78% | 2789 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,330 psi | 82% | 2822 fps | 99.1% |
| IMR 4350 | <<locked>> | 80% | 38,116 psi | 60% | 2585 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,976 psi | 69% | 2694 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 37,101 psi | 58% | 2595 fps | 98.4% |
| IMR 4895 | <<locked>> | 80% | 52,808 psi | 83% | 2877 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,689 psi | 76% | 2799 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 96% | 47,718 psi | 75% | 2884 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 50,227 psi | 79% | 2785 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,350 psi | 65% | 2638 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 39,595 psi | 62% | 2621 fps | 96.8% |
| Lovex S071 | <<locked>> | 90% | 33,649 psi | 53% | 2513 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 50,821 psi | 80% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,221 psi | 68% | 2733 fps | 95.7% |
| Norma MRP | 70.2 gr | 86% | 36,608 psi | 57% | 2677 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 38,392 psi | 60% | 2638 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 80% | 51,474 psi | 81% | 2861 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 44,425 psi | 70% | 2831 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 37,246 psi | 58% | 2625 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 94% | 39,392 psi | 62% | 2700 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,702 psi | 43% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,863 psi | 77% | 2789 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,527 psi | 71% | 2835 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,508 psi | 60% | 2664 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,318 psi | 58% | 2674 fps | 97.9% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,390 psi | 57% | 2700 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 51,851 psi | 81% | 2795 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,585 psi | 71% | 2736 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,369 psi | 74% | 2782 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 88% | 41,568 psi | 65% | 2720 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 42,467 psi | 67% | 2661 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,350 psi | 65% | 2638 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 50,227 psi | 79% | 2785 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,595 psi | 62% | 2621 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,949 psi | 74% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,876 psi | 73% | 2638 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,466 psi | 63% | 2582 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,191 psi | 65% | 2713 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 45,818 psi | 72% | 2733 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,631 psi | 76% | 2776 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 34,780 psi | 55% | 2592 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 39,421 psi | 62% | 2641 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 52,446 psi | 82% | 2756 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,605 psi | 82% | 2772 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,859 psi | 69% | 2664 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,842 psi | 62% | 2641 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 38,914 psi | 61% | 2625 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 50,720 psi | 79% | 2766 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,146 psi | 61% | 2638 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 30,211 psi | 47% | 2474 fps | 96.6% |
| Vihtavuori N560 | 76.7 gr | 94% | 48,979 psi | 77% | 2923 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,870 psi | 61% | 2608 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 40,799 psi | 64% | 2697 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,701 psi | 40% | 2428 fps | 96.4% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,640 psi | 65% | 2687 fps | 95.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 98 powders for .300 Weath. Mag. loaded with the .308 | 175gr | SAKO Blade. Norma MRP delivers the highest muzzle velocity at 3,061 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,061 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2217 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for .300 Weath. Mag. with the .308 | 175gr | SAKO Blade they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.